Methane (CH4) is the second most important greenhouse gas after CO2 that is produced by human activities.

Short-term to long-term data estimation

The High Performance Computing Facility (HPCF) is supercharging New Zealand science.

These datasets are available in a range of formats.

The Standardised Precipitation Index (SPI) is a simple measure of drought (and also of very wet conditions) and is based solely on the accumulated precipitation for a given time period.

How healthy is your stream? SHMAK - the New Zealand Stream Health Monitoring and Assessment Kit - has been designed to help you find out.

One of the most common species of freshwater fish in Aotearoa is the common bully or toitoi.

What are the impacts of water dams on water quality and mahinga kai?

Hull-mounted on the RV Tangaroa, the EM302 multibeam echosounder maps the seafloor using a fan of 288 acoustic beams, producing up to 864 soundings per ping in dual swath mode, providing 100% coverage of the seabed.

Submerged plants have a number of advantages that favour their use as indicators of lake ecological condition.